Washington Net Migration Rate By County in 2020

Updated on January 22, 2024.

According to the US Census Bureau estimates, in 2020, the net migration rate per 1,000 population for Washington was 7.42. Pend Oreille County had the highest net migration rate per 1,000 population (33.73) followed by Pacific County (29.14), and Kittitas County (27.04). On the other hand, Whitman County had the lowest net migration rate per 1,000 population (-14.43), followed by Adams County (-9.5), and Yakima County (-4.37).

Net migration rate for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county per 1,000 of the county's mid-year population. A positive rate is known as a net immigration rate, and a negative rate is known as a net emigration rate.

You can also see similar information for other states and also for the US by state. You can also see links at the bottom of the page for the trend of the net migration rate for each county in Washington.

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.

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Washington Net Migration Rate By County in 2020
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County Net Migration Rate
Adams -9.5
Asotin 8.53
Benton 6.24
Chelan 5.2
Clallam 15.36
Clark 12.55
Columbia 10.66
Cowlitz 9.05
Douglas 4.12
Ferry 13.09
Franklin 6.04
Garfield 12.29
Grant 7.04
Grays Harbor 15.05
Island 7.11
Jefferson 18.6
King 6.66
Kitsap 0.47
Kittitas 27.04
Klickitat 12.54
Lewis 19.36
Lincoln 15.98
Mason 20.63
Okanogan 6.59
Pacific 29.14
Pend Oreille 33.73
Pierce 5.09
San Juan 11.19
Skagit 12.15
Skamania 2.64
Snohomish 5.36
Spokane 10.06
Stevens 14.17
Thurston 13.39
Wahkiakum 24.22
Walla Walla 3.87
Whatcom 9.35
Whitman -14.43
Yakima -4.37